use float for prices, reduce data redundancy
This commit is contained in:
Lorenc Pekaj
parent
b1847fffdf
commit
8d8fdc1392
@ -11,7 +11,7 @@
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/* ** Definitions ** */
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#define MAX_STOCKS ( 32 )
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#define STOCK_REPORTING_PERIOD ( 86400 ) // 1 day
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#define STOCK_REPORTING_PERIOD ( 500 ) // 1 day
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#define STOCK_REPORTING_PERIODS ( 30 ) // last 30 periods (days)
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@ -28,8 +28,8 @@ enum E_STOCK_MARKET_DATA
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enum E_STOCK_MARKET_PRICE_DATA
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{
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E_CURRENT_PRICE,
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E_CURRENT_EARNINGS, E_PREVIOUS_EARNINGS
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E_SQL_ID, Float: E_PRICE,
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Float: E_EARNINGS
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};
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static stock
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@ -41,7 +41,33 @@ static stock
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/* ** Hooks ** */
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hook OnScriptInit( )
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{
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CreateStockMarket( 0, "The Mining Company", "MC", 10000000, 100 );
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// server variables
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AddServerVariable( "stock_report_time", "0", GLOBAL_VARTYPE_INT );
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// create markets
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CreateStockMarket( 0, "The Mining Company", "MC", 50000000, 100 );
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return 1;
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}
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hook OnServerUpdate( )
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{
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new current_time = GetServerTime( );
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new last_reporting = GetServerVariableInt( "stock_report_time" );
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// check if its reporting time
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if ( current_time > last_reporting )
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{
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// reporting period
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UpdateServerVariableInt( "stock_report_time", current_time + STOCK_REPORTING_PERIOD );
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// create a new reporting period for every stock there
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foreach ( new s : stockmarkets )
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{
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StockMarket_CreateReport( s );
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}
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print( "Successfully created new reporting period for all online companies" );
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}
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return 1;
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}
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@ -55,17 +81,23 @@ thread Stock_UpdateReportingPeriods( stockid )
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{
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for ( new row = 0; row < rows; row ++ )
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{
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g_stockMarketPriceData[ stockid ] [ row ] [ E_CURRENT_PRICE ] = cache_get_field_content_int( row, "CURRENT_PRICE" );
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g_stockMarketPriceData[ stockid ] [ row ] [ E_CURRENT_EARNINGS ] = cache_get_field_content_int( row, "CURRENT_EARNINGS" );
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g_stockMarketPriceData[ stockid ] [ row ] [ E_PREVIOUS_EARNINGS ] = cache_get_field_content_int( row, "PREVIOUS_EARNINGS" );
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g_stockMarketPriceData[ stockid ] [ row ] [ E_SQL_ID ] = cache_get_field_content_int( row, "ID" );
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g_stockMarketPriceData[ stockid ] [ row ] [ E_PRICE ] = cache_get_field_content_float( row, "CURRENT_PRICE" );
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g_stockMarketPriceData[ stockid ] [ row ] [ E_EARNINGS ] = cache_get_field_content_float( row, "CURRENT_EARNINGS" );
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}
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}
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return 1;
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}
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thread StockMarket_InsertReport( stockid )
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{
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g_stockMarketPriceData[ stockid ] [ 0 ] [ E_SQL_ID ] = cache_insert_id( );
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return 1;
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}
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/* ** Command ** */
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CMD:increase( playerid, params[ ] ) {
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g_stockMarketPriceData[ 0 ] [ 0 ] [ E_CURRENT_EARNINGS ] += strval( params );
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StockMarket_UpdateEarnings( 0, strval( params ) );
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return 1;
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}
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@ -80,28 +112,23 @@ CMD:stockmarkets( playerid, params[ ] )
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foreach ( new s : stockmarkets )
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{
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printf("%d %d\n", g_stockMarketPriceData[ s ] [ 0 ] [ E_CURRENT_EARNINGS ], g_stockMarketPriceData[ s ] [ 1 ] [ E_CURRENT_EARNINGS ]);
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new Float: price_difference = ( ( float( g_stockMarketPriceData[ s ] [ 0 ] [ E_CURRENT_EARNINGS ] ) / float( g_stockMarketPriceData[ s ] [ 1 ] [ E_CURRENT_EARNINGS ] ) ) - 1.0 ) * 100.0;
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new current_price = g_stockMarketPriceData[ s ] [ 0 ] [ E_CURRENT_PRICE ];
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// prevent integer overflow (over 2.6B)
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new Float: market_cap_millions = ( float( g_stockMarketData[ s ] [ E_MAX_SHARES ] ) / 1000000.0 ) * ( float( current_price ) / 1000000.0 );
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new Float: market_cap_billions = market_cap_millions / 1000.0;
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printf("%f %f\n", g_stockMarketPriceData[ s ] [ 0 ] [ E_EARNINGS ], g_stockMarketPriceData[ s ] [ 1 ] [ E_EARNINGS ]);
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new Float: price_difference = ( g_stockMarketPriceData[ s ] [ 1 ] [ E_EARNINGS ] / g_stockMarketPriceData[ s ] [ 2 ] [ E_EARNINGS ] - 1.0 ) * 100.0;
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new Float: current_price = g_stockMarketPriceData[ s ] [ 1 ] [ E_PRICE ];
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format(
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szLargeString, sizeof( szLargeString ),
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"%s%s (%s)\t"COL_GREEN"%s\t$%s%s\t%s%s%%\n",
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"%s%s (%s)\t"COL_GREEN"%s\t%s%s%%\n",
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szLargeString,
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g_stockMarketData[ s ] [ E_NAME ],
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g_stockMarketData[ s ] [ E_SYMBOL ],
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cash_format( current_price ),
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market_cap_billions > 1.0 ? number_format( market_cap_billions, .decimals = 2 ) : number_format( market_cap_millions, .decimals = 2 ),
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market_cap_billions > 1.0 ? ( "B" ) : ( "M" ),
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cash_format( current_price, .decimals = 0 ),
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price_difference >= 0.0 ? ( COL_GREEN ) : ( COL_RED ),
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number_format( price_difference, .decimals = 2 )
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);
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}
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SendServerMessage( playerid, "The stock market will close in %s.", secondstotime( GetServerVariableInt( "stock_report_time" ) - GetServerTime( ) ) );
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return ShowPlayerDialog( playerid, DIALOG_STOCK_MARKET, DIALOG_STYLE_TABLIST_HEADERS, ""COL_WHITE"Stock Market", szLargeString, "Select", "Close" );
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}
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@ -118,9 +145,8 @@ stock CreateStockMarket( stockid, const name[ 64 ], const symbol[ 4 ], max_share
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// reset stock price information
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for ( new r = 0; r < sizeof( g_stockMarketPriceData[ ] ); r ++ ) {
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g_stockMarketPriceData[ stockid ] [ r ] [ E_CURRENT_PRICE ] = 0;
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g_stockMarketPriceData[ stockid ] [ r ] [ E_CURRENT_EARNINGS ] = 0;
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g_stockMarketPriceData[ stockid ] [ r ] [ E_PREVIOUS_EARNINGS ] = 0;
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g_stockMarketPriceData[ stockid ] [ r ] [ E_PRICE ] = 0.0;
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g_stockMarketPriceData[ stockid ] [ r ] [ E_EARNINGS ] = 0.0;
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}
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// load price information if there is
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@ -134,8 +160,20 @@ stock CreateStockMarket( stockid, const name[ 64 ], const symbol[ 4 ], max_share
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stock StockMarket_CreateReport( stockid )
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{
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new old_earnings = g_stockMarketPriceData[ stockid ] [ 0 ] [ E_CURRENT_EARNINGS ];
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new old_price = g_stockMarketPriceData[ stockid ] [ 0 ] [ E_CURRENT_PRICE ];
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// limit a 20% loss for players
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new Float: circuit_breaker = g_stockMarketPriceData[ stockid ] [ 1 ] [ E_EARNINGS ] * 0.8;
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if ( g_stockMarketPriceData[ stockid ] [ 0 ] [ E_EARNINGS ] < circuit_breaker ) {
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g_stockMarketPriceData[ stockid ] [ 0 ] [ E_EARNINGS ] = circuit_breaker;
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}
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// change stock price proportional to earnings increase/decrease
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new Float: price_difference = g_stockMarketPriceData[ stockid ] [ 0 ] [ E_EARNINGS ] / g_stockMarketPriceData[ stockid ] [ 1 ] [ E_EARNINGS ];
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printf("Earnings %f\n", price_difference );
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if ( ( g_stockMarketPriceData[ stockid ] [ 0 ] [ E_PRICE ] = g_stockMarketPriceData[ stockid ] [ 1 ] [ E_PRICE ] * price_difference ) < 1.0 ) {
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g_stockMarketPriceData[ stockid ] [ 0 ] [ E_PRICE ] = 1.0;
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}
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// store temporary stock info
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new temp_stock_price_data[ MAX_STOCKS ] [ STOCK_REPORTING_PERIODS ] [ E_STOCK_MARKET_PRICE_DATA ];
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@ -143,58 +181,77 @@ stock StockMarket_CreateReport( stockid )
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// shift all earnings by one
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for ( new r = 0; r < sizeof( g_stockMarketPriceData[ ] ) - 2; r ++ ) {
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g_stockMarketPriceData[ stockid ] [ r + 1 ] [ E_CURRENT_PRICE ] = temp_stock_price_data[ stockid ] [ r ] [ E_CURRENT_PRICE ];
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g_stockMarketPriceData[ stockid ] [ r + 1 ] [ E_CURRENT_EARNINGS ] = temp_stock_price_data[ stockid ] [ r ] [ E_CURRENT_EARNINGS ];
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g_stockMarketPriceData[ stockid ] [ r + 1 ] [ E_PREVIOUS_EARNINGS ] = temp_stock_price_data[ stockid ] [ r ] [ E_PREVIOUS_EARNINGS ];
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g_stockMarketPriceData[ stockid ] [ r + 1 ] [ E_PRICE ] = temp_stock_price_data[ stockid ] [ r ] [ E_PRICE ];
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g_stockMarketPriceData[ stockid ] [ r + 1 ] [ E_EARNINGS ] = temp_stock_price_data[ stockid ] [ r ] [ E_EARNINGS ];
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}
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// price difference
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new Float: price_change = float( g_stockMarketPriceData[ stockid ] [ 0 ] [ E_CURRENT_EARNINGS ] ) / float( old_earnings );
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// set current price to previous reporting period price
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g_stockMarketPriceData[ stockid ] [ 0 ] [ E_PRICE ] = g_stockMarketPriceData[ stockid ] [ 1 ] [ E_PRICE ];
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// circuit breaker ... max 20% loss
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if ( price_change < 0.8 ) {
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price_change = 0.8;
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}
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// reset earnings
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g_stockMarketPriceData[ stockid ] [ 0 ] [ E_EARNINGS ] = 0.0; // set to 0
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new new_price = floatround( float( old_price ) * price_change );
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// insert to database the old information
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mysql_format(
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dbHandle, szBigString, sizeof ( szBigString ),
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"INSERT INTO `STOCK_REPORTS` (`STOCK_ID`, `CURRENT_PRICE`, `CURRENT_EARNINGS`) VALUES (%d, %f, %f)",
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stockid,
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g_stockMarketPriceData[ stockid ] [ 0 ] [ E_PRICE ],
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g_stockMarketPriceData[ stockid ] [ 0 ] [ E_EARNINGS ]
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);
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// minimum stock price should be $10
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if ( new_price < 1 ) {
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new_price = 1;
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}
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// set information
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g_stockMarketPriceData[ stockid ] [ 0 ] [ E_CURRENT_PRICE ] = new_price;
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g_stockMarketPriceData[ stockid ] [ 0 ] [ E_CURRENT_EARNINGS ] = 0; // set to 0
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g_stockMarketPriceData[ stockid ] [ 0 ] [ E_PREVIOUS_EARNINGS ] = old_earnings;
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// insert to database
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//
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erase(szLargeString);
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// shift all earnings by one
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for ( new r = 0; r < sizeof( g_stockMarketPriceData[ ] ); r ++ ) {
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format( szLargeString, 1024, "%s{%d,%d,%d}, ", szLargeString, g_stockMarketPriceData[ stockid ] [ r ] [ E_CURRENT_PRICE ], g_stockMarketPriceData[ stockid ] [ r ] [ E_CURRENT_EARNINGS ], g_stockMarketPriceData[ stockid ] [ r ] [ E_PREVIOUS_EARNINGS ] );
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}
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printf("%s\n",szLargeString);
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mysql_tquery( dbHandle, szBigString, "StockMarket_InsertReport", "d", stockid );
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return 1;
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}
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stock StockMarket_GetCurrentPrice( stockid ) {
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return g_stockMarketPriceData[ stockid ] [ 0 ] [ E_CURRENT_PRICE ];
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stock StockMarket_UpdateEarnings( stockid, amount )
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{
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if ( ! Iter_Contains( stockmarkets, stockid ) )
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return 0;
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printf( "Current Earnings: %f, Prior Earnings: %f", g_stockMarketPriceData[ stockid ] [ 0 ] [ E_EARNINGS ], g_stockMarketPriceData[ stockid ] [ 1 ] [ E_EARNINGS ] );
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g_stockMarketPriceData[ stockid ] [ 0 ] [ E_EARNINGS ] += amount;
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mysql_single_query( sprintf( "UPDATE `STOCK_REPORTS` SET `CURRENT_EARNINGS` = `CURRENT_EARNINGS` + %d WHERE `ID` = %d", g_stockMarketPriceData[ stockid ] [ 0 ] [ E_EARNINGS ], g_stockMarketPriceData[ stockid ] [ 0 ] [ E_SQL_ID ] ) );
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return 1;
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}
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stock Float: StockMarket_GetEarnings( stockid ) {
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return g_stockMarketPriceData[ stockid ] [ 0 ] [ E_EARNINGS ];
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}
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stock Float: StockMarket_GetCurrentPrice( stockid ) {
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return g_stockMarketPriceData[ stockid ] [ 0 ] [ E_PRICE ];
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}
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stock StockMarket_MakeSellOrder( stockid, accountid, Float: shares, Float: price )
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{
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//INSERT INTO `STOCK_ORDERS` (`USER_ID`, `STOCK_ID`, ``)
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return 1;
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}
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/*
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CREATE TABLE IF NOT EXISTS `STOCK_REPORTS` (
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`ID` int(11) primary key auto_increment,
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`STOCK_ID` int(11),
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`CURRENT_PRICE` int(11),
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`CURRENT_EARNINGS` int(11),
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`PREVIOUS_EARNINGS` int(11),
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`CURRENT_PRICE` float,
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`CURRENT_EARNINGS` float,
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`REPORTING_TIME` TIMESTAMP default CURRENT_TIMESTAMP
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);
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CREATE TABLE IF NOT EXISTS `STOCK_OWNERS` (
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`ID` int(11) primary key auto_increment,
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`USER_ID` int(11),
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`STOCK_ID` int(11),
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`SHARES` float,
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`PRICE` float
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);
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CREATE TABLE IF NOT EXISTS `STOCK_ORDERS` (
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`ID` int(11) primary key auto_increment,
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`USER_ID` int(11),
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`STOCK_ID` int(11),
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`SHARES` float,
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`PRICE` float,
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);
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*/
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@ -12,6 +12,15 @@
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/* ** Includes ** */
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#include < YSI\y_hooks >
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/* ** Macros ** */
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#define GetServerVariableInt GetGVarInt
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#define UpdateServerVariableString(%0,%1) \
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(UpdateServerVariable(%0, 0, 0, %1, GLOBAL_VARTYPE_STRING))
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#define UpdateServerVariableInt(%0,%1) \
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(UpdateServerVariable(%0, %1, 0, "", GLOBAL_VARTYPE_INT))
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/* ** Hooks ** */
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hook OnGameModeInit( )
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{
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